Difference between revisions of "Team:Glasgow"

 
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<i>Campy</i>LOCATOR
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Detection of <i>Campylobacter jejuni</i> for the prevention of food poisoning </i>
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Project Description
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<i>Campylobacter </i> species, especially <i>Campylobacter jejuni</i>, are bacterial pathogens responsible for the majority of food poisoning in the UK. This bacteria is considered to cause over 280,000 cases of bacterial gastroenteritis annually. Although also found on red meat, unpasteurized milk and unfiltered water, 4 out of 5 cases of campylobacteriosis come from contaminated chickens. During the slaughter process the bacterium gets transferred onto the chicken skin and is often found on fresh retail chickens and their packaging. The most important transmission route is consumption of undercooked chicken or other foods that get cross-contaminated from raw poultry meat. </p>
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<p class="copy"> Current detection systems for the pathogen are time-consuming, expensive and inaccessible for everyday users. We therefore aimed to develop a new, cheaper and faster system for detection of <i>C. jejuni</i> using synthetic biology. We approached this by genetically engineering <i>Escherichia coli</i> to serve a function of a dual-input biosensor. The bacterium will sense bacterial quorum sensing signals and xylulose - a sugar naturally present in the outer capsule of <i>Campylobacter jejuni</i>, to detect the pathogen on a swabbed surface. </p>
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<a href="https://2017.igem.org/Team:Glasgow/Accomplishments">Our Accomplishments at the Jamboree!</a>
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<a href="https://2017.igem.org/Team:Glasgow/mtlR">Engineering <i>E. coli</i> to Respond to <i>Campylobacter</i>-Associated Sugar</a>
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<a href="https://2017.igem.org/Team:Glasgow/araC">Expanding the Biosensor parts Toolkit, using <i>araC</i> Mutants</a>
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<a href="https://2017.igem.org/Team:Glasgow/Hardware">Designing a Functional Prototype Biosensor device</a>
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<a href="https://2017.igem.org/Team:Glasgow/Outreach">Engaging with the world about <i>Campylobacter</i></a>
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                <p class="lead text-muted">Our project idea is to develop a biosensor to detect the presence of the bacteria Campylobacter. This sensor will utilise the rare sugar xylulose, which is found in the polysaccharide capsule of campylobacter and is released when the bacteria is run through an acidic solution. By exploiting the mannitol operon that is present in the bacteria Pseudomonas fluorescens and expressing this in our chassis organism, Escherichia Coli, we will produce a biosensor that will express the reporter molecule Green Fluorescent Protein (GFP) when xylulose interacts with the repressor molecule of the mannitol operon. Additional sub-projects will include; investigating the quorum sensing mechanisms in campylobacter to increase the specificity of our sensor, developing hardware to produce a functioning biosensor and investigating the legal and ethical issues associated with our project.</p>
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Latest revision as of 21:00, 15 December 2017

Glasgow iGEM 2017
CampyLOCATOR
Detection of Campylobacter jejuni for the prevention of food poisoning
Project Description

Campylobacter species, especially Campylobacter jejuni, are bacterial pathogens responsible for the majority of food poisoning in the UK. This bacteria is considered to cause over 280,000 cases of bacterial gastroenteritis annually. Although also found on red meat, unpasteurized milk and unfiltered water, 4 out of 5 cases of campylobacteriosis come from contaminated chickens. During the slaughter process the bacterium gets transferred onto the chicken skin and is often found on fresh retail chickens and their packaging. The most important transmission route is consumption of undercooked chicken or other foods that get cross-contaminated from raw poultry meat.

Current detection systems for the pathogen are time-consuming, expensive and inaccessible for everyday users. We therefore aimed to develop a new, cheaper and faster system for detection of C. jejuni using synthetic biology. We approached this by genetically engineering Escherichia coli to serve a function of a dual-input biosensor. The bacterium will sense bacterial quorum sensing signals and xylulose - a sugar naturally present in the outer capsule of Campylobacter jejuni, to detect the pathogen on a swabbed surface.

iGEM 2017 Glasgow

Using synthetic biology to create a biosensor for detection of Campylobacter jejuni, a bacteria linked to food poisoning.

Contact Info

iGEM 2017 Glasgow
Wilkins Teaching Laboratory
Bower Building
University of Glasgow

igem.glasgow2017@gmail.com

Sponsors